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Diffstat (limited to 'nova/tests/unit/fake_notifier.py')
-rw-r--r-- | nova/tests/unit/fake_notifier.py | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/nova/tests/unit/fake_notifier.py b/nova/tests/unit/fake_notifier.py new file mode 100644 index 0000000000..110418215d --- /dev/null +++ b/nova/tests/unit/fake_notifier.py @@ -0,0 +1,69 @@ +# Copyright 2013 Red Hat, Inc. +# +# Licensed under the Apache License, Version 2.0 (the "License"); you may +# not use this file except in compliance with the License. You may obtain +# a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +# License for the specific language governing permissions and limitations +# under the License. + +import collections +import functools + +import anyjson +from oslo import messaging + +from nova import rpc + +NOTIFICATIONS = [] + + +def reset(): + del NOTIFICATIONS[:] + + +FakeMessage = collections.namedtuple('Message', + ['publisher_id', 'priority', + 'event_type', 'payload']) + + +class FakeNotifier(object): + + def __init__(self, transport, publisher_id, serializer=None): + self.transport = transport + self.publisher_id = publisher_id + self._serializer = serializer or messaging.serializer.NoOpSerializer() + + for priority in ['debug', 'info', 'warn', 'error', 'critical']: + setattr(self, priority, + functools.partial(self._notify, priority.upper())) + + def prepare(self, publisher_id=None): + if publisher_id is None: + publisher_id = self.publisher_id + return self.__class__(self.transport, publisher_id, + serializer=self._serializer) + + def _notify(self, priority, ctxt, event_type, payload): + payload = self._serializer.serialize_entity(ctxt, payload) + # NOTE(sileht): simulate the kombu serializer + # this permit to raise an exception if something have not + # been serialized correctly + anyjson.serialize(payload) + msg = FakeMessage(self.publisher_id, priority, event_type, payload) + NOTIFICATIONS.append(msg) + + +def stub_notifier(stubs): + stubs.Set(messaging, 'Notifier', FakeNotifier) + if rpc.NOTIFIER: + stubs.Set(rpc, 'NOTIFIER', + FakeNotifier(rpc.NOTIFIER.transport, + rpc.NOTIFIER.publisher_id, + serializer=getattr(rpc.NOTIFIER, '_serializer', + None))) |